\documentclass[a4paper,10pt]{article}
\usepackage[utf8x]{inputenc}
\usepackage{graphics} % for pdf, bitmapped graphics files
\usepackage{graphicx}
\usepackage{subfig}
%opening
\title{}
\author{}

\begin{document}

\maketitle

\section{}

\begin{center}
    \begin{tabular}{ | l | l |}
    \hline
    Vertex & Frequency \\ \hline
    STAIR & $85\%$ \\
    CORR & $78\%$ \\
    OFF & $67\%$ \\
    OFF SV & $60\%$ \\
    ELEC & $60\%$ \\
    JAN CL & $57\%$ \\
    LOBBY & $48\%$ \\
    \hline
    \end{tabular}
\end{center}

\begin{figure*}
  \centering
  \subfloat[Frequency: $37.66\%$]{\label{fig:FS31}\includegraphics[scale=0.4]{figures/FS/FSSize31}}                
  \hspace{2mm}
  \subfloat[Frequency: $37.11\%$]{\label{fig:FS32}\includegraphics[scale=0.4]{figures/FS/FSSize32}}
  \hspace{2mm}
  \subfloat[Frequency: $36.56\%$]{\label{fig:FS33}\includegraphics[scale=0.4]{figures/FS/FSSize33}} \\
  \subfloat[Frequency: $26.50\%$]{\label{fig:FS41}\includegraphics[scale=0.4]{figures/FS/FSSize41}}                
  \hspace{2mm}
  \subfloat[Frequency: $25.04\%$]{\label{fig:FS42}\includegraphics[scale=0.4]{figures/FS/FSSize42}}
  \hspace{2mm}
  \subfloat[Frequency: $25.04\%$]{\label{fig:FS43}\includegraphics[scale=0.4]{figures/FS/FSSize43}} \\
  \subfloat[Frequency: $17.18\%$]{\label{fig:FS51}\includegraphics[scale=0.4]{figures/FS/FSSize51}}                
  \hspace{2mm}
  \subfloat[Frequency: $17.00\%$]{\label{fig:FS52}\includegraphics[scale=0.4]{figures/FS/FSSize52}}
  \hspace{2mm}
  \subfloat[Frequency: $17.00\%$]{\label{fig:FS33}\includegraphics[scale=0.4]{figures/FS/FSSize53}}
  \caption{The three most common frequent subgraphs for graph sizes 3, 4 and 5}
  \label{fig:FreqSubgraphs}
\end{figure*}


\end{document}
